You can use the NetView® program or another product that provides similar interface and services to dynamically configure your channel-attached devices.

If you are using NetView, take the following steps to prepare it for dynamic I/O configuration:

1. Modify the message automation table so that when MVS™ issues message IOS502I, NetView can start the IOS502I command list. The following sample addition to the message automation table logs messages issued by the ISTDEFIN command list, starts the IOS502I command list, routes the message to one operator and logs it:

   IF MSGID="ISTDEFIN" THEN
      DISPLAY (N)
      NETLOG(Y);
   IF MSGID="IOS502I" THEN
      EXEC (CMD("IOS502I") ROUTE (ONE OPER1))
      DISPLAY (N)
      NETLOG(Y);

2. Modify the NetView start procedure to point to the sample library (VTAM®.SAMPLIB) where the IOS502I and ISTDEFIN command lists reside or move the command lists from the sample library to the library where your other command lists are stored.
3. Activate the message automation table that you changed using the NetView command AUTOMSG MEMBER=tablename.